Steve, I will add some more sheetmetal videos this week, but in the meantime here is a new one: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-xpEMsIe2A6c.html
I do not have any. Fun fact: the software license agreements we all sign to use Creo prevents people from creating commercial training without PTC’s consent. But I have no desire to create training content.
It would look flat. Neither the Form nor Flatten Form tools take conservation of mass into account. It’s the user responsibility to ensure forms can actually be made in the real world.